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Mathematics
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scsnm
  • Member for 4 years, 11 months
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10
How many groups of order at most $25$ are "pleasant" (abelian, with every non-identity element having prime order)?
Aug 22, 2019
6
A binary operation on $G$ satisfies $a\cdot(b\cdot c)=(a\cdot b)\cdot (a\cdot c)$ and has an identity, is it a group?
Aug 22, 2019
4
arrow category and functor category
Jul 24, 2020
4
Right exactness of quotienting out the maximal divisible subgroup
Jul 30, 2020
4
construct the normaliser of a subgroup and then construct the subgroup
Aug 21, 2022
4
elementary abelian 2-groups extension
Feb 15, 2022
3
dimension of centraliser
May 31, 2022
3
inclusion among finite symplectic groups
Aug 9, 2022
3
$GL_2(K)$ and $SL_2(K)\circ_2 T_1$
Feb 22, 2022
3
For $P$ the set of all primes, ${\rm Hom}(\Bbb Z,\sum_{p\in P}\Bbb Z_p)\not\cong\prod_{p\in P}{\rm Hom}(\Bbb Z,\Bbb Z_p)$
Jan 6, 2022